Well, she did say she was going to list Hobbit names. Arwen, Elrond and Galadriel are Elves; and Eowyn and Aragorn are Human.

Now, to the names!

GIRLS
Adaldrida - A bit of a tongue-twister for me.
Adamanta - Nice
Amaranth - Really like this one, though I prefer it with an "a" at the endAmethyst - Pretty and usable
Asphodel - Sounds weird to me, but I can't put my finger on why
Belladonna - Love love love. Also, Bilbo's mother, who, from what I could gather, was an awesome ladyCamellia - Really pretty name and flower
Celandine - I don't know about this oneDiamond - Doesn't sound very name-like to me
Donnamira - Not really a fan of this oneDora - The Explorer (though I really think it's pretty)Eglantine - I like this one, but I don't think it's really usableEsmeralda - I like this one, but I find it too attached to the gypsy and Mexican soap-operasEstella - Like it. And you could link it to Aragorn's elf name (Estel - meaning hope if I'm not mistaken)Gerda - I find this one a bit awkwardGilly - Makes me think of that disgusting plant Harry had to eat to get through the Second Task
Goldilocks - Should remain in the fairy-talesHilda - Okay
Hildigard - Prefer HildaIvy - Usable, pretty popularLalia - I like it okayLavender - Like it, very nice
Lobelia - has a nice sound, though the Sackville-Bagginses don't deserve a child named after themMarigold - Love itMimosa - Every cow (the animal) I've ever known has been called either Mimosa or Estrella, so I'd have to say noMirabella - Very prettyMyrtle - Moaning MyrtleNora - Nice, very commonPansy - Parkinson (Oh God, I'm a HarryPotter freak haha)Peony - Not sure how to pronounce this onePrimrose - I like it, though I think everyone will think Hunger GamesPrimula - Frodo's mother! Like it a lot
Rosamunda - Prefer Rosamund

BOYS
Adalbert - I know someone named Adalberto, so I'd say its usable
Andwise - Prefer SamwiseAnson - Okay, prefer Anton
Doderic - Don't really like itEverard - Usable, but I don't really like how it soundsFerdinand - Like it, reminds me of the bull
Flambard - Makes me think of that awesome dessert with the vanilla icecream, banana and the fire (especially the fire)
Fortinbras - Don't really think it's usable
Fredegar - Same as above
Halfred - Alfred?
Hildibrand - NoHugo - Like it, common enough
Isembard - These Tooks had some weird names
Isembold - Same as above
Marmadoc - Okay, Brandybucks had weird names also
Meriadoc - I like MerryOtho - Usable, but I think it would be confused with OttoOtto - Perfectly usablePaladin - Gamers will surely recognise this onePeregrin - Love love love, though I prefer it with an "e" at the end
Rorimac - Could use nn Rory
Rudigar - Rude?Rufus - Okay, not really a fan but it's usable enough
Samwise - Really like, a nice alternative to nn SamSancho - Panza? Don't know if people will remember him from DonQuixote, but it's all that comes to my mind
Saradoc - Sounds a bit feminine to me. Must be the Sara beggining
Tolman - Usable
Wilimar - A nice way to get to Will if you don't want to use William (or Willard)

I think maybe the girl names are more usable because they are basically flowers and gems. Had a lot of fun in this one